3. (04.02 MC) Which component is missing from the process of photosynthesis? Carbon Dioxide + Water + ________ Glucose + Oxygen
1 answer:
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Answer : The enthalpy of combustion per mole of is -2815.8 kJ/mol
Explanation :
Enthalpy change : It is defined as the difference in enthalpies of all the product and the reactants each multiplied with their respective number of moles. It is represented as
The equation used to calculate enthalpy change is of a reaction is:
The equilibrium reaction follows:
The equation for the enthalpy change of the above reaction is:
We are given:
Putting values in above equation, we get:
Therefore, the enthalpy of combustion per mole of is -2815.8 kJ/mol
Answer : The correct option is, (A) 0.109 M
Solution : Given,
Mass of = 17 g
volume of solution = 974 ml
Molar mass of = 159.609 g/mole
Molarity : It is defined as the number of moles of solute present in one liter of solution.
Formula used :
where,
w = mass of (solute)
M = molar mass of
= volume of solution in liter
Now put all the given values in the above formula, we get the molarity of solution.
Therefore, the molarity of the solution is, 0.109 M